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#include "QxDockItem.hpp"
#include "QxColors.hpp"

QxDockItem::QxDockItem( ORIENTATION orien,
                        qreal x,
                        qreal y,
                        qreal width,
                        qreal length,
                        QGraphicsScene* scene,
                        QGraphicsItem* parent )
  : QxDemoItem( scene, parent )
{
  this->orientation = orien;
  this->width       = width;
  this->length      = length;
  this->setPos( x, y );
  this->setZValue( 40 );
  this->setupPixmap();
}

void QxDockItem::setupPixmap()
{
  this->pixmap = new QPixmap( int(this->boundingRect().width()), int(this->boundingRect().height()) );
  this->pixmap->fill( QColor(0, 0, 0, 0) );
  QPainter painter( this->pixmap );

  // create brush:
  QColor background = QxColors::sceneBg1;
  QLinearGradient brush( 0, 0, 0, this->boundingRect().height() );
  brush.setSpread( QGradient::PadSpread );

  if( this->orientation == DOWN ) {
    brush.setColorAt( 0.0, background );
    brush.setColorAt( 0.2, background );
    background.setAlpha( 0 );
    brush.setColorAt( 1.0, background );
  } else if( this->orientation == UP ) {
    brush.setColorAt( 1.0, background );
    brush.setColorAt( 0.8, background );
    background.setAlpha( 0 );
    brush.setColorAt( 0.0, background );
  } else {
    qWarning( "QxDockItem doesn't support the orientation given!" );
  }

  painter.fillRect( 0, 0, int(this->boundingRect().width()), int(this->boundingRect().height()), brush );
}

QxDockItem::~QxDockItem()
{
  delete this->pixmap;
}

QRectF QxDockItem::boundingRect() const
{
  if( this->orientation == UP || this->orientation == DOWN ) {
    return QRectF( 0, 0, this->length, this->width );
  } else {
    return QRectF( 0, 0, this->width, this->length );
  }
}

void QxDockItem::paint( QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget )
{
  Q_UNUSED( option );
  Q_UNUSED( widget );

  painter->drawPixmap( 0, 0, *this->pixmap );
}
